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Thorough Cleaning of Components

4:00
11:06
65.2K views

At 4:00 in

Cleaning A Graco Contractor II Gun. Repair an Airless Spray Gun.

What happens here

Let all the disassembled parts soak in the cup of lacquer thinner for approximately five minutes. The lacquer thinner is very effective at loosening dried latex paint. After soaking, use the old toothbrush to thoroughly scrub all components, including the internal parts of the gun body, threads, and the O-rings. Use Q-tips to clean inside smaller holes and tight spaces. Ensure that all paint residue and grime are completely removed. If any dried paint remains on the O-rings, gently pick it off with your fingernail rather than using a sharp tool, to avoid damage. Clean your hands with ProGold Pro Towels if they become dirty during this process.

Goal: Remove all paint and grime from every disassembled part of the spray gun.

Tools and materials

  • Cup for thinnerHolding soaking parts
  • Old toothbrushScrubbing paint and grime from parts
  • Q-tipsCleaning intricate internal parts
  • Lacquer thinnerCleaning paint from parts
  • ProGold Pro Towels ProGoldCleaning hands

What they say

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section part of the end of the gun. You got to be very careful to when you pull those O-rings off. This one just popped out not to damage them. Be very careful with your little tiny flathead screwdriver not to damage the O-ring. It just Now the O-ring's off this part of the gun. And drop that down in the lacquer thinner. The end that holds the spring in doesn't have an O-ring or drop my spring in. And then the packing part has a little tiny O-ring right here in the center of the packing. We're going to pull that off. You don't want to stretch them out either too bad. So, just barely just work that thing off the best you can. If you're going to be replacing your packings with new ones, it comes with new O-rings, so you don't have to worry about it. I'm going to try to clean this gun, put it back to together without putting new packings in. They're like $50 to $60. I'm going to try to put it back together, assemble it, test it with water. If it doesn't leak, we're going to go ahead and use it. If it leaks, then we're going to replace the packings. So, we'll let those soak for about 5 minutes, begin cleaning them with my toothbrush. And then once I got it cleaned, we're going to see I like either use a gallon can or one of these plastic little cups for cleaning and whatever is easiest and more convenient. It's been soaking in here for about 5 minutes. And I'll just begin cleaning all these parts with my toothbrush and get them all good and clean. Lacquer thinner loosens up all this latex paint. Makes it come off really easily.

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